deVops pathshala Blog – Notes for Me & You

🟢 Basic Level  General Concepts What is DevOps and why is it important? What is the difference between DevOps and Agile? Explain the DevOps lifecycle (Plan → Code → Build → Test → Release → Deploy → Operate → Monitor). What is CI/CD? How do they differ? What is the difference between Continuous Delivery and Continuous Deployment? Version Control What is Git? How is it different from SVN? What is the difference between git merge and git rebase ? What is a pull request / merge request? How do you resolve a merge conflict in Git? Linux/OS Basics What are inodes in Linux? How do you check disk usage in Linux? ( df , du ) What is the difference between a process and a thread? What does chmod 755 mean? How do you check running processes? ( ps , top , htop ) 🟡 Intermediate Level CI/CD & Automation What tools have you used for CI/CD? (Jenkins, GitHub Actions, GitLab CI, CircleCI) Explain a Jenkins pipeline. What is a Jenkinsfile ? What is the difference between a declarative...

  🟢 Basic Kubernetes Interview Questions What is Kubernetes? Why do we use Kubernetes? Difference between Docker and Kubernetes? What is a Pod in Kubernetes? What is a Node in Kubernetes? What is a Namespace? What is a Deployment in Kubernetes? What is a Service in Kubernetes? Types of Services in Kubernetes? What is a Kubelet? What is a Kubernetes Master Node? What are Labels and Selectors? What is ReplicaSet? What is the difference between ReplicaSet and Deployment? What is kubectl? (common commands) What are ConfigMaps? What are Secrets? Difference between Secret and ConfigMap? What is ETCD? What is Scheduler? What is Container Runtime in Kubernetes? 🟡 Intermediate Kubernetes Questions Difference between NodePort, ClusterIP, LoadBalancer? What is Ingress and Ingress Controller? What is Horizontal Pod Autoscaler (HPA)? What are taints and tolerations? What is Node Affinity vs Pod Affinity? What is DaemonSet? What is StatefulSet? Difference between StatefulSet and Deployment? Wh...